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Transcription and Regulation

Transcription and Regulation
Transcription factors are

TATA boxes
promoters
proteins which bind to DNA and regulate transcription
CATT boxes

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Transcription and Regulation
The binding of lac repressor to DNA could be considered to be analogous to

uncompetitive inhibition of an enzyme
competitive inhibition of an enzyme
allosteric effects in enzyme regulation
mixed-type inhibition of an enzyme

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Transcription and Regulation
The nucleons of eukaryotic cell has

RNA polymerase II
RNA polymerase III
RNA polymerase I
all of these

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Transcription and Regulation
Promoters for tRNAs are located

both (a) and (b)
upstream from the start codon
downstream from the start codon
none of these

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Transcription and Regulation
The RNA polymerases that transcribe bacterial DNA are

interchangable with DNA polymerases
highly glycosylated in their active forms
only active inside the cell
multisubunit enzymes

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Transcription and Regulation
In prokaryotes, transcription is

terminated by the stop codon
terminated by a protein called rho
terminated by a start codon
terminated by a poly A sequence

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